After ending the battle against Zolgia, Basara regains his peaceful life with his two little sisters, Mio, the daughter of the previous demon lord, and Maria, her little sister who's also a succubus. As Basara pursues the preparations for the sports festival at school, one day he's attacked by a person being manipulated by magic. Recalling the strange gaze he felt at school, a suspicion of his begins to grow...
Somewhere here, there's an enemy after me.
Irgendjemand hier
hat es auf mich abgesehen.
En algún lugar se encuentra 
el enemigo que me acecha.
En algún lugar se encuentra 
el enemigo que me acecha.
Quelque part ici,
Da qualche parte in questa città
 c'è un nemico che mi sta dando la caccia.
Em algum lugar aqui, tem
 um inimigo atrás de mim.
Где-то там враг, охотящийся на меня.